Cov txheej txheem tsim khoom tuaj yeem muab faib ua plaub theem tseem ceeb:
(1) Kev sib xyaw ntawm cov khoom siv raw: Sib piv cov ntxhia raw cov ntaub ntawv xws li quartz xuab zeb thiab limestone.
(2) Kub-kub melting: Melting qhov sib tov rau hauv kua iav nyob rau hauv lub cub tawg ntawm kub tshaj 1,400 degree.
(3) Fiber drawing thiab forming: Cia lub iav molten ntws los ntawm ntau lub qhov bushing thiab kos nws ntawm kev kub ceev los tsim cov fibers tas li.
(4) Kev kho deg: Siv tus neeg sawv cev sizing los txhim kho lub zog sib txuas ntawm cov fibers thiab cov resin.